Morphometric Analysis of the Clavicles in Chinese Population.

Jesse Chieh-Szu Yang,Pei-Yuan Lee,Kang-Ping Lin,Hung-Wen Wei,Kun-Jhih Lin,Cheng-Lun Tsai

doi:10.1155/2017/8149109

Abstract

The clavicle has a complex geometry that makes plate fixation technically difficult. The current study aims to measure the anatomical parameters of Chinese clavicles as reference for plate design. One hundred clavicles were analyzed. The clavicle bone model was reconstructed by using computed tomography images. The length, diameters, and curvatures of the clavicle were then measured. The female clavicle was shorter, more slender, and less curved in lateral part than the male clavicle. There was a positive relationship between height and clavicle parameters except lateral curve and depth. The measurements of Chinese clavicles were generally smaller than Caucasians. The clavicle curves were correlated with the bone length; thus consideration of the curve variations may be necessary as designing size distribution of clavicle plate.

Highlights

The incidence of clavicle bone fracture among all fractures was 5∼10%, and about 80% of clavicle bone fracture occurred in the midshaft of the bone [1, 2]
Recent study has proven that the prognosis of plate fixation in treating displaced midshaft clavicle fracture was better than nonoperative treatment [5, 6]
To the authors’ knowledge, there are no studies in the literature characterizing anthropometric parameters of the Chinese clavicle as it relates to implant design

Summary

Introduction

The incidence of clavicle bone fracture among all fractures was 5∼10%, and about 80% of clavicle bone fracture occurred in the midshaft of the bone [1, 2]. Recent literatures claimed that precontoured clavicular bone plate significantly decreases hardware prominence problems [8] and the precontoured plating system had lower rate of plate prominence versus noncontoured plating in patients who did not undergo hardware removal [9]. These cases were studied between Caucasian population and specific precontoured Locking Clavicle Plates (Acumed, Hillsboro, Oregon; Depuy-Synthes, PA, USA). This study aims to measure the geometric parameters of the CT-based clavicle model for Chinese population. We used three-dimensional (3D) computational modeling to pursue quantitative understanding of the clavicle

Objectives

Methods

Results

Conclusion